Publications by authors named "J E Nishizawa"

Background: Fatal arrhythmic events (FAEs), such as sudden cardiac death (SCD) and fatal ventricular arrhythmias, are a devastating complication in patients with coronary artery disease (CAD). Therefore, in this study we aimed to assess the incidence of FAEs in more recent Japanese patients with CAD and to examine whether risk stratification of FAEs can still be feasible using the left ventricular ejection fraction (LVEF).

Methods And Results: In the CREDO Kyoto PCI/CABG registry cohorts-2 and -3, there were 25,843 patients with LVEF data who received a first coronary revascularization (LVEF ≤35% group: N=1,671, 35%45%: N=21,503).

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  • The study examined the impact of very low levels of low-density lipoprotein cholesterol (LDL-C) on patients with coronary artery disease, using data from over 39,000 patients who underwent coronary revascularization.
  • It was found that patients with very low LDL-C levels (<85 mg/dL) had more health issues and a higher risk of all-cause mortality compared to those with higher levels, revealing significant risks for various types of death and heart failure.
  • Overall, the research suggests that lower LDL-C levels correlate with more serious health problems and increased mortality risk, highlighting the need for careful management of cholesterol levels in at-risk patients.
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  • The study investigates life expectancy after aortic valve replacement (AVR) in patients with severe aortic stenosis (AS), highlighting a lack of existing data on this topic.
  • Data from 3815 patients in the CURRENT AS registry revealed that those who underwent AVR had better survival rates than those using a conservative treatment strategy, especially among younger patients.
  • The findings suggest that assessing surgical risk based on age and STS score can help estimate life expectancy post-AVR, which is crucial for deciding between surgical and transcatheter approaches.
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Background: Diabetes is a well-known risk factor for adverse outcomes after coronary revascularization.

Objectives: This study sought to determine high-risk subgroups in whom the excess risks of diabetes relative to nondiabetes are particularly prominent and thus may benefit from more aggressive interventions.

Methods: The study population consisted of 39,427 patients (diabetes: n = 15,561; nondiabetes: n = 23,866) who underwent first percutaneous coronary intervention (n = 33,144) or coronary artery bypass graft (n = 6,283) in the pooled CREDO-Kyoto PCI/CABG (Coronary Revascularization Demonstrating Outcome Study in Kyoto Percutaneous Coronary Intervention/Coronary Artery Bypass Graft) registry.

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  • - The study compares the long-term outcomes of percutaneous coronary intervention (PCI) using new-generation drug-eluting stents (DES) and coronary artery bypass grafting (CABG) in 2,464 patients with multi-vessel coronary artery disease.
  • - Although the 5-year risk of combined events like death, heart attack, or stroke was not significantly different between the two groups, adjusted analysis showed that PCI had a higher risk of myocardial infarction and the need for additional revascularization compared to CABG.
  • - The findings suggest that while both procedures have similar outcomes regarding death and stroke, PCI with new-generation DES may carry a greater long-term risk for major cardiovascular issues in patients requiring complex multi-vessel treatments
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